Can't seem to develop my delts

Train like an animal here, lift heavy and never finish a session without wanting to throw up... but I still can't get definition between delts and bis. Any good tips for really helping the delts round out?

Sorry, so are you saying you're trying to get striated delts, or are you saying your delts are small compared to the rest of your physique and you want them to be bigger? Because if its the former, then you just gotta be leaner, lol.